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U.S. ZIP Codes Database 2026

Search by ZIP code, city, county, or state and find clear postal details with maps, time zones, and area code data.

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Sac County ZIP Codes

Browse all ZIP Codes, cities, and associated area codes registered in Sac County.

County State ZIP Code City Area Codes
Sac County IA 50535 Early 712
Sac County IA 50561 Lytton 712
Sac County IA 50567 Nemaha 712
Sac County IA 50583 Sac City 712
Sac County IA 51053 Schaller 712
Sac County IA 51433 Auburn 712
Sac County IA 51450 Lake View 712
Sac County IA 51458 Odebolt 712
Sac County IA 51466 Wall Lake 712
Massac County IL 62908 Belknap 618
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About U.S. ZIP Codes

ZIP codes are a United States Postal Service system introduced in 1963 to make mail routing more accurate and efficient. The standard format uses five digits, while ZIP+4 adds four more digits for a more precise delivery segment.

ZIP codes cover the United States, its territories, military mail routes, and other USPS delivery points. This directory organizes that data for practical lookup by ZIP code, city, county, and state.